Mold.



D. Y. TOMLINSON';

MOLD.

APPLICATION FILED FEB. 21, 1913.

Patented Nov. 3, 1914.

4 SHEETS-SHEET 1.

INIIEIITOR 73121114601.

5 ATTORNEY THE NORRIS PETERS CO. PHOTO-LITHO.. WASHFINGTON. D. C.

D. Y. TOMLINSON.

MOLD.

APPLICATION FILED FEB. 21, 1913.

Patented Nov. 3, 1914.

4 SHEETS-SHEET 2.

$4 ATTORNEY,

THE NORRIS PETERS 00., PHOTU-LITH-LI, WASHINGTON- D. C

D. Y TOMLINSON.

MOLD.

APPLIOATION FILED FEB, 21, 1913.

Patented Nov. 3, 1914;

4 SHEETS-SHEET 3.

INVENTOI? 12K T'om/fizaon.

WI TIIESSES D. Y. TOMLINSON.

MOLD.

APPLICATION FILED FEB-21, 1913.

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DAVID YOUNG TOMLINSON, OE BOSWELL, NEW MEXICO.

MOLD.

Specification of Letters'Patent.

Patented Nov. 3, 1914.

Application filed February 21, 1913. Serial No. 749,957.

To all whom it may concern Be it known that I, DAVID Y. ToMLINsoN, a citizen of the United States, residing at Roswell, in the county of Chaves and State of New Mexico, have invented certain new and useful Improvements in Molds, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a mold for forming a plastic stave which is to be used in building silos and other similar structures.

One of the objects is to provide a mold which may be easily set up and which may be securely held in a set up position While in use.

Another object of the invention is to pro vide a mold which is so constructed that the various parts may be easily taken to pieces, thus permitting them to be put away in a small amount of space when the mold is not in use.

Another object of the invention is to provide a mold which will cause the stave to be provided with edge grooves, thus forming pockets in which mortar may flow to hold the staves together.

Vith these and other objects in view this invention consists of certain novel combina" tions, constructions, and arrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawings :Figure 1 is a top plan view of the mold. Fig. 2 is an end elevation of the mold. Fig. 3 is a sectional view through the mold along the line 3-3, in Fig. 1. Fig. 4 is a sectional view along the line 44, in Fig. 1. Fig. 5 is a fragmentary perspective view of one end portion of the mold. Fig. 6 is a perspective view of the flooring strip of one of the mold sections. Fig. 7 is a perspective view of one of the end strips of one of the mold sections. Fig. 8 is a bottom plan View of two of the staves showing the manner in which they fit together. Fig. 9 is a perspective view of the staves shown in Fig. 8.

This invention comprises a base having the longitudinally extending side strips 10 and the transversely extending cross bars 11 which connect the side bars 10 and form the principal supporting means for the upper portion of the mold. These cross bars carry the longitudinally extending beams 12 which have their ends connected by the bolts 13. Vertical standards 14 are provided with reduced lower end portions 14: extending into the space between the beams 10 and 12 and are secured to the beam 10 by any suitable means. The upper ends of these standards 14 are connected with a longitudinally extending upper beam 15, which beam 1s connected with a second longitudinally extending beam 16 by means of the bolts 17 Notches 18 are formed in the end portions of the upper and lower beams 12, 15 and 16 and a wedge shape block 19 is rigidly secured in the outer end portions of each of these notches so that when the se-' curing wedges 20 are driven into place they will force the angle bars 21 toward the centers of these longitudinally extending beams, thus compressing the mold sections and holding them in the desired position. This portion of the mold constitutes the frame in which the strips forming the mold sections are placed, and it will be readily seen that when these mold sections are in place that tightening the wedges 20 will .cause the sections tobe held in the desired position. Each of these sections comprises the bottom strip 22 which restsupon the cross bars 11 and which are provided with a groove 23 forming a bead 24: on the lower edge of the stave 25. The end strips 26 rest upon the bottom strips 22 and are each provided with a bead 27 forming a groove 28 in the side edge of the stave. The edge portions of the strips 22 and 26 are provided with cut-out portions forming seats 29 in which the ends of the side strips 30 fit as clearly shown in Fig. 1. It should be noted that these end strips 26 are so formed that the edges of the staves will be formed at an angle, thus causing the staves to readily go together to form a circular silo. When setting up this mold the sections are placed in the mold as shown in Fig. 1 and with vertical angle irons 31 placed between the side strips 80 of the sections and with transversely extending angle irons 32 between the end strips of the sections. The vertical angle irons rest upon the transversely extending bars 11 and the transversely extending angle irons 32 rest upon the longitudinally extending bars 12 and upper longitudinally extending bars 15 and 16. After the mold sections have been set up the wedges 20 are driven until wedged tightly into place, and the bolts 13 and 17 are then tightened and the mold is ready for use.

A suitable mixture of cement or any other desired plastic is poured into the mold'seo tions and is allowed to remain until hardened after which the wedges are removed and the bolts 13 and 17 loosened to permit the sections of the mold to be removed and the cement staves carried to a suitable stornected and the entire device can then be very easily packed away in a small amount of space. If it is desired to form additional staves after removing those already formed the sections can again be set up after which the mold will be again filled withthe plastic mixture and the operation repeated.

Top strips 33 are provided for the mold sections and are provided with beads 34 forming grooves 35 in the upper edges ofthe staves 25. The tongues 24 fit into these grooves and hold the staves in the desired position.

It should be understood that the standards 14 will constitute an abutment on the rear side of the mold against which the beams 12 and may rest when setting the mold up for operation. It should be understood, however, that it is not necessary that standards similar to the standards 14 be employed upon the front side of the mold, for

the reason that an abutment is not necessary on-the front side of the mold, and further for the reason that one side of the mold is adapted to be open when setting up or taking down the mold.

Having thus described the invention what is-claimed as new, is

A mold comprising abase, a plurality of side members, end members carried by said side members, a plurality of series of block molds, bars interposed between said series and extending transversely of said mold, transversely extending. rods carried by the ends of said side bars, nuts threaded upon said transversely extending rods for tightening the same and causing said side members to be slightly compressed, end members carried by said side members, cooperating wedges, said sidemembers provided with notched portions formed therein, said wedges fitting in said notched portions, and said wedges adapted to compress said end members toward eachother for taking up the shrinkage of the material out of which the mold is formed due to the expansion and contraction of said material.

In testimony whereof I hereunto aflix my signature in presence of two witnesses.

DAVID YOUNG TOMLINSON.

Witnesses:

IRVING L. MOGATHRAN, Ross J. WOODWARD.

Copies of thil patent may DCQbtflhQd fOI five cents each, by addre'ssing the Gommissioner of Patents, Washington, D. G." 

